Package org.apache.jena.jdbc.results.metadata

Class TripleResultsMetadata

java.lang.Object

org.apache.jena.jdbc.results.metadata.AbstractResultsMetadata

org.apache.jena.jdbc.results.metadata.JenaResultsMetadata

org.apache.jena.jdbc.results.metadata.TripleResultsMetadata

All Implemented Interfaces:

ResultSetMetaData, Wrapper

public class TripleResultsMetadata
extends JenaResultsMetadata

Result set metadata for TripleIteratorResults instances

Field Summary

Fields

Modifier and Type	Field	Description
static final int	COLUMN_INDEX_OBJECT	Constant for the object column index (assuming no columns are omitted)
static final int	COLUMN_INDEX_PREDICATE	Constant for the predicate column index (assuming no columns are omitted)
static final int	COLUMN_INDEX_SUBJECT	Constant for the subject column index (assuming no columns are omitted)
static final String	COLUMN_LABEL_OBJECT	Constant for the default object column label
static final String	COLUMN_LABEL_PREDICATE	Constant for the default predicate column label
static final String	COLUMN_LABEL_SUBJECT	Constant for the default subject column label
static final int	NUM_COLUMNS	Constant for the number of columns in triple results

Fields inherited from interface java.sql.ResultSetMetaData

columnNoNulls, columnNullable, columnNullableUnknown

Constructor Summary

Constructors

Constructor	Description
TripleResultsMetadata(JenaResultSet results, Iterator<Triple> ts)	Creates new results metadata for triple (CONSTRUCT/DESCRIBE) results
TripleResultsMetadata(JenaResultSet results, Iterator<Triple> ts, String subjLabel, String predLabel, String objLabel)	Creates new results metadata for triple (CONSTRUCT/DESCRIBE) results
TripleResultsMetadata(JenaResultSet results, org.apache.jena.atlas.iterator.PeekIterator<Triple> ts)	Creates new results metadata for triple (CONSTRUCT/DESCRIBE) results
TripleResultsMetadata(JenaResultSet results, org.apache.jena.atlas.iterator.PeekIterator<Triple> ts, String subjLabel, String predLabel, String objLabel)	Creates new results metadata for triple (CONSTRUCT/DESCRIBE) results
TripleResultsMetadata(TripleResultsMetadata metadata, String subjLabel, String predLabel, String objLabel)	Creates new results metadata for triple (CONSTRUCT/DESCRIBE) results
TripleResultsMetadata(TripleResultsMetadata metadata, ColumnInfo[] columns)	Creates new results metadata for triple (CONSTRUCT/DESCRIBE) results

Method Summary

Modifier and Type	Method	Description
String	getObjectColumnLabel()	Gets the object column label
String	getPredicateColumnLabel()	Gets the predicate column label
String	getSubjectColumnLabel()	Gets the subject column label

Methods inherited from class org.apache.jena.jdbc.results.metadata.AbstractResultsMetadata

getCatalogName, getColumnClassName, getColumnCount, getColumnDisplaySize, getColumnLabel, getColumnName, getColumnType, getColumnTypeName, getJenaColumnInfo, getPrecision, getScale, getSchemaName, getTableName, isAutoIncrement, isCaseSensitive, isCurrency, isDefinitelyWritable, isNullable, isReadOnly, isSearchable, isSigned, isWrapperFor, isWritable, unwrap

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

COLUMN_LABEL_SUBJECT

public static final String COLUMN_LABEL_SUBJECT

Constant for the default subject column label

See Also:

• Constant Field Values

COLUMN_LABEL_PREDICATE

public static final String COLUMN_LABEL_PREDICATE

Constant for the default predicate column label

See Also:

• Constant Field Values

COLUMN_LABEL_OBJECT

public static final String COLUMN_LABEL_OBJECT

Constant for the default object column label

See Also:

• Constant Field Values

COLUMN_INDEX_SUBJECT

public static final int COLUMN_INDEX_SUBJECT

Constant for the subject column index (assuming no columns are omitted)

See Also:

• Constant Field Values

COLUMN_INDEX_PREDICATE

public static final int COLUMN_INDEX_PREDICATE

Constant for the predicate column index (assuming no columns are omitted)

See Also:

• Constant Field Values

COLUMN_INDEX_OBJECT

public static final int COLUMN_INDEX_OBJECT

Constant for the object column index (assuming no columns are omitted)

See Also:

• Constant Field Values

NUM_COLUMNS

public static final int NUM_COLUMNS

Constant for the number of columns in triple results

See Also:

• Constant Field Values

Constructor Details

TripleResultsMetadata

public TripleResultsMetadata(JenaResultSet results,
 org.apache.jena.atlas.iterator.PeekIterator<Triple> ts)
                      throws SQLException

Creates new results metadata for triple (CONSTRUCT/DESCRIBE) results

Parameters:

results - Result Set

ts - Triple iterator

Throws:

SQLException - Thrown if the metadata cannot be created

TripleResultsMetadata

public TripleResultsMetadata(JenaResultSet results,
 Iterator<Triple> ts)
                      throws SQLException

Creates new results metadata for triple (CONSTRUCT/DESCRIBE) results

Parameters:

results - Result Set

ts - Triple iterator

Throws:

SQLException - Thrown if the metadata cannot be created

TripleResultsMetadata

public TripleResultsMetadata(JenaResultSet results,
 org.apache.jena.atlas.iterator.PeekIterator<Triple> ts,
 String subjLabel,
 String predLabel,
 String objLabel)
                      throws SQLException

Creates new results metadata for triple (CONSTRUCT/DESCRIBE) results

Parameters:

results - Result Set

ts - Triple iterator

subjLabel - Label for subject column, use null to omit the subject column

predLabel - Label for predicate column, use null to omit the predicate column

objLabel - Label for object column, use null to omit the object column

Throws:

SQLException - Thrown if the metadata cannot be created

TripleResultsMetadata

public TripleResultsMetadata(JenaResultSet results,
 Iterator<Triple> ts,
 String subjLabel,
 String predLabel,
 String objLabel)
                      throws SQLException

Creates new results metadata for triple (CONSTRUCT/DESCRIBE) results

Parameters:

results - Result Set

ts - Triple iterator

subjLabel - Label for subject column, use null to omit the subject column

predLabel - Label for predicate column, use null to omit the predicate column

objLabel - Label for object column, use null to omit the object column

Throws:

SQLException - Thrown if the metadata cannot be created

TripleResultsMetadata

public TripleResultsMetadata(TripleResultsMetadata metadata,
 String subjLabel,
 String predLabel,
 String objLabel)
                      throws SQLException

Creates new results metadata for triple (CONSTRUCT/DESCRIBE) results

Parameters:

metadata - Metadata

subjLabel - Label for subject column, use null to omit the subject column

predLabel - Label for predicate column, use null to omit the predicate column

objLabel - Label for object column, use null to omit the object column

Throws:

SQLException - Thrown if the metadata cannot be created

TripleResultsMetadata

public TripleResultsMetadata(TripleResultsMetadata metadata,
 ColumnInfo[] columns)
                      throws SQLException

Creates new results metadata for triple (CONSTRUCT/DESCRIBE) results

Parameters:

metadata - Metadata

columns - Column Information

Throws:

SQLException - Thrown if the metadata cannot be created

Method Details

getSubjectColumnLabel

public String getSubjectColumnLabel()

Gets the subject column label

Returns:

Column label or null if the column is omitted

getPredicateColumnLabel

public String getPredicateColumnLabel()

Gets the predicate column label

Returns:

Column label or null if the column is omitted

getObjectColumnLabel

public String getObjectColumnLabel()

Gets the object column label

Returns:

Column label or null if the column is omitted